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Finding the Fourth Proportional to 288,541.71, 398,153.21 and 159,472.26

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Solution

The fourth proportional to 288,541.71, 398,153.21 and 159,472.26 is: 220,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,541.71 : 398,153.21 = 159,472.26 : x
  2. Step 2: Convert to fraction form
    288,541.71/398,153.21 = 159,472.26/x
  3. Step 3: Cross multiply
    288,541.71x = 398,153.21 × 159,472.26
  4. Step 4: Simplify right side
    288,541.71x = 63,494,391,427.59
  5. Step 5: Solve for x
    x = 63,494,391,427.59/288,541.71
  6. Step 6: Final answer
    x = 220,052.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.